AUTUMN HUNTING WITH A FIELD GLASS
One of the most uncertain of months is October, and most difficult for the beginner in bird study. If we are just learning to enjoy the life of wood and field, we will find hard tangles to unravel among the birds of this month. Many of the smaller species which passed us on their northward journey last spring are now returning and will, perhaps, tarry a week or more before starting on the next nocturnal stage of their passage tropicward. Many are almost unrecognisable in their new winter plumage. Male scarlet tanagers are now green tanagers, goldfinches are olive finches, while instead of the beautiful black, white, and cream dress which made so easy the identification of the meadow bobolinks in the spring, search will now be rewarded only by some plump, overgrown sparrows—reedbirds—which are really bobolinks in disguise.
Orchard orioles and rose-breasted grosbeaks come and are welcomed, but the multitude of female birds of these species which appear may astonish one, until he discovers that the young birds, both male and female, are very similar to their mother in colour. We have no difficulty in distinguishing between adult bay-breasted and black poll warblers, but he is indeed a keen observer who can point out which is which when the young birds of the year pass.
October is apt to be a month of extremes. One day the woods are filled with scores of birds, and on the next hardly one will be seen. Often a single species or family will predominate, and one will remember “thrush days” or “woodpecker days.” Yellow-bellied sapsuckers cross the path, flickers call and hammer in every grove, while in the orchards, and along the old worm-eaten fences, glimpses of red, white, and black show where redheaded woodpeckers are looping from trunk to post. When we listen to the warble of bluebirds, watch the mock courtship of the high-holders, and discover the fall violets under leaves and burrs, for an instant a feeling of spring rushes over us; but the yellow leaves blow against our face, the wind sighs through the cedars, and we realise that the black hand of the frost will soon end the brave efforts of the wild pansies.
The thrushes, ranking in some ways at the head of all our birds, drift through the woods, brown and silent as the leaves around them. Splendid opportunities they give us to test our powers of woodcraft. A thrush passes like a streak of brown light and perches on a tree some distance away. We creep from tree to tree, darting nearer when his head is turned. At last we think we are within range, and raise our weapon. No, a leaf is in the way, and the dancing spots of sunlight make our aim uncertain. We move a little closer and again take aim, and this time he cannot escape us. Carefully our double-barrelled binoculars cover him, and we get what powder and lead could never give us—the quick glance of the hazel eye, the trembling, half-raised feathers on his head, and a long look at the beautifully rounded form perched on the twig, which a wanton shot would destroy forever. The rich rufous colouring of the tail proclaims him a singer of singers—a hermit thrush. We must be on the watch these days for the beautiful wood thrush, the lesser spotted veery, the well named olive-back and the rarer gray-cheeked thrush. We may look in vain among the thrushes in our bird books for the golden-crowned and water thrush, for these walkers of the woods are thrushes only in appearance, and belong to the family of warblers. The long-tailed brown thrashers, lovers of the undergrowth, are still more thrush-like in look, but in our classifications they hold the position of giant cousins to the wrens. Even the finches contribute a mock thrush to our list, the big, spotted-breasted fox sparrow, but he rarely comes in number before mid October or November. Of course we all know that our robin is a true thrush, young robins having their breasts thickly spotted with black, while even the old birds retain a few spots and streaks on the throat.
If we search behind the screen of leaves and grass around us we may discover many tragedies. One fall I picked up a dead olive-backed thrush in the Zoological Park. There were no external signs of violence, but I found that the food canal was pretty well filled with blood. The next day still another bird was found in the same condition, and the day after two more. Within a week I noted in my journal eight of these thrushes, all young birds of the year, and all with the same symptoms of disorder. I could only surmise that some poisonous substance, some kind of berry, perhaps some attractive but deadly exotic from the Botanical Gardens, had tempted the inexperienced birds and caused their deaths.
As we walk through the October woods a covey of ruffed grouse springs up before us, overhead a flock of robins dashes by, and the birds scatter to feed among the wild grapes. The short round wings of the grouse whirr noisily, while the quick wing beats of the robins make little sound. Both are suited to their uses. The robin may travel league upon league to the south, while the grouse will not go far except to find new bud or berry pastures. His wings, as we have noticed before, are fitted rather for sudden emergencies, to bound up before the teeth of the fox close upon him, to dodge into close cover when the nose of the hound almost touches his trembling body. When he scrambled out of his shell last May he at once began to run about and to try his tiny wings, and little by little he taught himself to fly. But in the efforts he got many a tumble and broke or lost many a feather. Nature, however, has foreseen this, and to her grouse children she gives several changes of wing feathers to practise with, before the last strong winter quills come in.
How different it is with the robin. Naked and helpless he comes from his blue shell, and only one set of wing quills falls to his share, so it behooves him to be careful indeed of these. He remains in the nest until they are strong enough to bear him up, and his first attempts are carefully supervised by his anxious parents. And so the glimpse we had in the October woods of the two pair of wings held more of interest than we at first thought.